**UNITED STATES**

**SECURITIES AND EXCHANGECOMMISSION**

**Washington, D.C. 20549**

 

**FORM 10-Q/A**

**Amendment No. 1**

 

**ý****                  QUARTERLYREPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934**

 

**For the quarterly period ended June 30, 2005**

 

**OR**

 

**o****                  TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934**

 

**For the transition period from        to         .**

 

**Commission file number 001-16047**

 

**Advanced Power Technology, Inc.**

(Exact name of registrant as specified in its charter)

 
| **Delaware**                    | ** ** | **93-0875072**         |
|---------------------------------|------------|------------------------|
| (State or other Jurisdiction of |       | (I.R.S. Employer       |
| Incorporation or Organization)  |       | Identification Number) |

 

**405 SW Columbia Street, Bend, Oregon  97702**

(Address of principal executive offices and Zip Code)

 

**(541) 382-8028**

(Registrant’s telephone number, including area code)

 

Indicate by check markwhether the Registrant (1) has filed all reports required to be filed by Section 13or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months(or for such shorter period that the registrant was required to file suchreports), and (2) has been subject to the filing requirements for the past90 days.  Yes ý    No o

 

Indicate by check markwhether the registrant is an accelerated filer (as defined in Rule 12b-2of the Exchange Act).  Yes ý    No o

 

The number of shares ofthe Registrant’s Common Stock outstanding as August 1, 2005 was 10,784,883shares.

 

 

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**ADVANCED POWER TECHNOLOGY, INC.**

 

**EXPLANATORY NOTE**

 

We arefiling this Amendment No. 1 to our quarterly report on Form 10-Q forthe three and six months ended June 30, 2005 as filed with the Securitiesand Exchange Commission on August 11, 2005. This Amendment No. 1 to Form 10-Qis filed solely to correct a typographical error in the certification pursuantto 18 U.S.C Section 1350, as adopted pursuant to section 906 of theSarbanes-Oxley Act of 2002, in which the quarterly period indicated wasinadvertently stated as the first quarter ended March 31, 2005, instead ofthe correct period which was the second quarter ended June 30, 2005. Thecorrected section 906 certification is attached hereto as Exhibit 32.

 

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**ITEM 6.EXHIBITS**

 

(a) The exhibitsfiled as part of this report are listed below:

 
| **Exhibit No.** | ** ** | ** **                                                                                                                          |
|----------------------|------------|-------------------------------------------------------------------------------------------------------------------------------------|
|                 |       |                                                                                                                                |
| 31                   |       | Rule13a-14(a)/15d-14(a) Certification,  as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.             |
|                 |       |                                                                                                                                |
| 32                   |       | Certification  pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906  of the Sarbanes-Oxley Act of 2002. |

 

**SIGNATURE**

 

Pursuantto the requirements of the Securities Exchange Act of 1934, the Registrant hasduly caused this report to be signed on its behalf by the undersigned,thereunto duly authorized this 4th day of November, 2005.

 

 
|   | ADVANCED POWER  TECHNOLOGY, INC.                                                   |
|--------|------------------------------------------------------------------------------------|
|   |                                                                               |
|   |                                                                               |
|   | By:                                                                                | /s/ GREG M.  HAUGEN |   |
|   |                                                                               |
|   | Greg M. Haugen                                                                     |
|   | Vice President, Finance and Administration,  Chief Financial Officer and Secretary |
|   | (Principal  Financial Officer)                                                     |

 

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